Automation System
What is the difference between integral and derivative control?

integral control has slower response to an error signal.
derivative control does not eliminate offset error
All of these
derivative control responds to a change in the rate of change in the error signal
None of these

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Automation System
A common data base is one requisite for converting CAD and CAM to CIM. Another is that:

None of these
the user must have access to both hardware and software
technical assistance must be provided to the user.
the system must make provision for new techniques.
there should be a common 3-D part description system.

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